NullPointerException when SecurityEntityFilteringFeature enabled

Hi,

I enabled SecurityEntityFilteringFeature. When I test a 406 due to a not supported media-type I get a NullPointerException thrown by ServerScopeProvider.getFilteringScopes because the getMatchedMethods() returns a null

```
for (final ResourceMethod method : ServerScopeProvider.getMatchedMethods(uriInfo)) {
final Invocable invocable = method.getInvocable();

mergeFilteringScopes(filteringScope,
getFilteringScopes(invocable.getHandlingMethod(), invocable.getHandler().getHandlerClass()));

if (!filteringScope.isEmpty()) {
uriToContexts.putIfAbsent(path, filteringScope);
return filteringScope;
}
}
```

How can I tell Jersey to execute this feature only if I return a 200
#### Affected Versions
[2.17]

Start in ServerScopeProvider.getFilteringScopes and inspect how getMatchedMethods() is handled when a 406 unsupported-media-type response occurs with SecurityEntityFilteringFeature enabled. Reproduce the reported NullPointerException and verify that filtering is only executed for a successful 200 response without breaking other response handling.

Written by the indexing model from the issue text.